Efforts to combat ISIS propaganda have been unified under a newly expanded State Department center. Kelly McEvers speaks with Richard Stengel, undersecretary of state for public diplomacy and public affairs, about the challenge that new center is tasked with.

The U.S. Department of State and USAID are supporting a wide range of programs and other initiatives to advance the themes of the White House Summit on Countering Violent Extremism (CVE), with particular attention to topics discussed during the February 19 ministerial meeting at the Department of State.

Richard Stengel, who left his job as managing editor of TIME magazine in 2013 to become Under Secretary of State for Public Diplomacy and Public Affairs in the Obama administration, said ISIS conquering land is an "opportunity" because "it's easier to combat people holding land and trying to government it than it is to combat people who are non-state actors."

The embittered battle against ISIS is making nations rethink how to approach social media as a weapon of war. Early this month, Britain announced its plans to form a battalion of "Facebook Warriors" in effort to battle ISIS's adept skills of recruiting through the platform, and also Twitter, YouTube, and other websites.

The Obama administration is revamping its effort to counter the Islamic State’s propaganda machine, acknowledging that the terrorist group has been far more effective in attracting new recruits, financing and global notoriety than the United States and its allies have been in thwarting it.

IS has turned public executions into multifaceted tools of social control, recruitment and unconventional warfare, as well as performances of legitimacy and strength.

Gunmen from an al-Qaida inspired militia have taken over radio and television stations in the central Libyan city of Sirte, a security official said. He said the seizure of the buildings happened on Thursday after militants from Ansar al-Sharia had warned the station to stop broadcasting music. The group, considered a terrorist organization by the United States, is accused of being involved in a deadly 2012 attack on a U.S. mission and annex in Benghazi. Its branch in the city of Derna has pledged allegiance to the Islamic State group.